package com.mmall.service.impl;

import com.github.pagehelper.PageHelper;
import com.github.pagehelper.PageInfo;
import com.google.common.collect.Lists;
import com.mmall.common.Const;
import com.mmall.common.ResponseCode;
import com.mmall.common.ServerResponse;
import com.mmall.dao.CategoryMapper;
import com.mmall.dao.ProductMapper;
import com.mmall.pojo.Category;
import com.mmall.pojo.Product;
import com.mmall.service.ICategoryService;
import com.mmall.service.IProductService;
import com.mmall.util.DateTimeUtil;
import com.mmall.util.PropertiesUtil;
import com.mmall.vo.ProductDetailVo;
import com.mmall.vo.ProductListVo;
import org.apache.commons.lang3.StringUtils;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Service;

import java.util.ArrayList;
import java.util.List;

/**
 * @ClassName: ProductServiceImpl
 * @Title: mmall
 * @Package: com.mmall.service.impl
 * @Description:
 * @author: liuqingsong
 * @E-mail: lqs_email@163.com
 * @version: 创建时间: 2019/7/8 17:13
 */
@Service("iProductService")
public class ProductServiceImpl implements IProductService {

    @Autowired
    private ProductMapper productMapper;

    @Autowired
    private CategoryMapper categoryMapper;

    @Autowired
    private ICategoryService iCategoryService;

    @Override
    public ServerResponse saveOrUpdateProduct(Product product){
        if (product!=null){
            if (StringUtils.isNotBlank(product.getSubImages())){
                String[] subImageArray=product.getSubImages().split(",");
                if (subImageArray.length>0){
                    product.setMainImage(subImageArray[0]);
                }
            }

            if (product.getId()!=null){
                int rowCount=productMapper.updateByPrimaryKey(product);
                if (rowCount>0){
                    return ServerResponse.createBySuccess("更新产品成功");
                }
                return ServerResponse.createByErrorMessage("更新产品失败");
            }
            int rowCount=productMapper.insert(product);
            if (rowCount>0){
                return ServerResponse.createBySuccess("新增产品成功");
            }
            return ServerResponse.createByErrorMessage("新增产品失败");

        }
        return ServerResponse.createByErrorMessage("新增或更新产品参数不正确");
    }

    @Override
    public ServerResponse<String> setSaleStatus(Integer productId,Integer status){
        if (productId==null||status==null){
            return ServerResponse.createByErrorCodeMessage(ResponseCode.ILLEGAL_ARGUMENT.getCode(),ResponseCode.ILLEGAL_ARGUMENT.getDesc());
        }
        Product product=new Product();
        product.setId(productId);
        product.setStatus(status);
        int rowCount=productMapper.updateByPrimaryKeySelective(product);
        if (rowCount>0){
            return ServerResponse.createBySuccess("修改产品销售状态成功");
        }
        return ServerResponse.createByErrorMessage("修改产品销售状态失败");
    }

    @Override
    public ServerResponse<ProductDetailVo> manageProductDetail(Integer productId){
        if (productId==null){
            return ServerResponse.createByErrorCodeMessage(ResponseCode.ILLEGAL_ARGUMENT.getCode(),ResponseCode.ILLEGAL_ARGUMENT.getDesc());
        }
        Product product=productMapper.selectByPrimaryKey(productId);
        if (product==null){
            return ServerResponse.createByErrorMessage("产品已下架或删除");
        }
        //VO对象--value object
        ProductDetailVo productDetailVo=assembleProductDetailVo(product);
        return ServerResponse.createBySuccess(productDetailVo);
    }

    private ProductDetailVo assembleProductDetailVo(Product product){
        ProductDetailVo productDetailVo=new ProductDetailVo();
        productDetailVo.setId(product.getId());
        productDetailVo.setSubtitle(product.getSubtitle());
        productDetailVo.setPrice(product.getPrice());
        productDetailVo.setMainImage(product.getMainImage());
        productDetailVo.setSubImages(product.getSubImages());
        productDetailVo.setCategoryId(product.getCategoryId());
        productDetailVo.setDetail(product.getDetail());
        productDetailVo.setName(product.getName());
        productDetailVo.setStatus(product.getStatus());
        productDetailVo.setStock(product.getStock());

        //imageHost,从配置文件中获取
        productDetailVo.setImageHost(PropertiesUtil.getProperty("ftp.server.http.prefix","http://img.lqswx.cn/"));
        //parentCategoryId
        Category category=categoryMapper.selectByPrimaryKey(product.getCategoryId());
        if (category==null){
            productDetailVo.setParentCategoryId(0);//默认根节点
        }else {
            productDetailVo.setParentCategoryId(category.getParentId());
        }

        //createTime
        productDetailVo.setCreateTime(DateTimeUtil.dateToStr(product.getCreateTime()));
        //updateTime
        productDetailVo.setUpdateTime(DateTimeUtil.dateToStr(product.getUpdateTime()));
        return productDetailVo;
    }

    @Override
    public ServerResponse<PageInfo> getProductList(int pageNum,int pageSize){
        //pageHelper通过aop植入,获取动态分页
        //startPage--记录开始
        PageHelper.startPage(pageNum,pageSize);
        //填充自己的sql查询逻辑
        List<Product> productList=productMapper.selectList();
        List<ProductListVo> productListVoList= Lists.newArrayList();
        for (Product productItem:productList) {
            ProductListVo productListVo=assembleProductListVo(productItem);
            productListVoList.add(productListVo);
        }
        //pageHelper--收尾
        PageInfo pageResult=new PageInfo(productList);
        pageResult.setList(productListVoList);
        return ServerResponse.createBySuccess(pageResult);
    }

    private ProductListVo assembleProductListVo(Product product){
        ProductListVo productListVo=new ProductListVo();
        productListVo.setId(product.getId());
        productListVo.setName(product.getName());
        productListVo.setCategoryId(product.getCategoryId());
        productListVo.setImageHost(PropertiesUtil.getProperty("ftp.server.http.prefix","http://img.lqswx.cn/"));
        productListVo.setMainImage(product.getMainImage());
        productListVo.setPrice(product.getPrice());
        productListVo.setSubtitle(product.getSubtitle());
        productListVo.setStatus(product.getStatus());
        return productListVo;
    }

    @Override
    public ServerResponse<PageInfo> searchProduct(String productName,Integer productId,int pageNum,int pageSize){
        //pageHelper通过aop植入,获取动态分页
        //startPage--记录开始
        PageHelper.startPage(pageNum,pageSize);
        //填充自己的sql查询逻辑
        if (StringUtils.isNotBlank(productName)){
            //拼接模糊查询字符串
            productName=new StringBuilder().append("%").append(productName).append("%").toString();
        }
        List<Product> productList=productMapper.selectByNameAndProductId(productName,productId);
        List<ProductListVo> productListVoList= Lists.newArrayList();
        for (Product productItem:productList) {
            ProductListVo productListVo=assembleProductListVo(productItem);
            productListVoList.add(productListVo);
        }
        //pageHelper--收尾
        PageInfo pageResult=new PageInfo(productList);
        pageResult.setList(productListVoList);
        return ServerResponse.createBySuccess(pageResult);
    }

    @Override
    public ServerResponse<ProductDetailVo> getProductDetail(Integer productId){
        if (productId==null){
            return ServerResponse.createByErrorCodeMessage(ResponseCode.ILLEGAL_ARGUMENT.getCode(),ResponseCode.ILLEGAL_ARGUMENT.getDesc());
        }
        Product product=productMapper.selectByPrimaryKey(productId);
        if (product==null){
            return ServerResponse.createByErrorMessage("产品已下架或删除");
        }
        //判断商品是否在线状态
        if (product.getStatus()!= Const.ProductStatusEnum.ON_SALE.getCode()){
            return ServerResponse.createByErrorMessage("产品已下架或删除");
        }
        //VO对象--value object
        ProductDetailVo productDetailVo=assembleProductDetailVo(product);
        return ServerResponse.createBySuccess(productDetailVo);
    }

    @Override
    public ServerResponse<PageInfo> getProductByKeywordCategory(String keyword,Integer categoryId,int pageNum,int pageSize,String orderBy){
        if (StringUtils.isBlank(keyword)&&categoryId==null){
            return ServerResponse.createByErrorCodeMessage(ResponseCode.ILLEGAL_ARGUMENT.getCode(),ResponseCode.ILLEGAL_ARGUMENT.getDesc());
        }
        List<Integer> categoryIdList=new ArrayList<Integer>();
        if (categoryId!=null){
            Category category=categoryMapper.selectByPrimaryKey(categoryId);
            if (category==null&&StringUtils.isBlank(keyword)){
                //没有该分类，并且还没有关键字，这时候返回一个空的结果集，不报错
                PageHelper.startPage(pageNum,pageSize);
                List<ProductListVo> productListVoList=Lists.newArrayList();
                PageInfo pageInfo=new PageInfo(productListVoList);//list为空，不需要为pagenfo再构造
                return ServerResponse.createBySuccess(pageInfo);
            }
            categoryIdList=iCategoryService.selectCategoryAndChildrenById(category.getId()).getData();
        }
        if (StringUtils.isNotBlank(keyword)){
            keyword=new StringBuilder().append("%").append(keyword).append("%").toString();
        }

        PageHelper.startPage(pageNum,pageSize);
        //排序处理
        if (StringUtils.isNotBlank(orderBy)){
            if (Const.ProductListOrderBy.PRICE_ASC_DESC.contains(orderBy)){
                String[] orderByArray=orderBy.split("_");
                PageHelper.orderBy(orderByArray[0]+" "+orderByArray[1]);//pageHelper排序
            }
        }
        List<Product> productList=productMapper.selectByNameAndCategoryIds(StringUtils.isBlank(keyword)?null:keyword,categoryIdList.size()==0?null:categoryIdList);
        List<ProductListVo> productListVoList=Lists.newArrayList();
        for (Product productItem:productList) {
            ProductListVo productListVo=assembleProductListVo(productItem);
            productListVoList.add(productListVo);
        }
        PageInfo pageInfo=new PageInfo(productList);
        pageInfo.setList(productListVoList);
        return ServerResponse.createBySuccess(pageInfo);
    }
}
